Nut lock



July 17,1928, 1,677,266

l. G. BRENNEMAN NUT LOCK Filed Feb. l, 1927 IWWESSES Patented July 1 Ivo GEORGE isaENNEMAN, or BLUE BALL, PENNsYLvANin V- This invention `r NUT LOCK.

Application `1ed lgebruary elatesbroadly to means lfor ypreventing retrograde movement of a nut vupona'bolt after A ing its opposite proper gripping Axfurtlierv object of A provision' of anut ,lock jincluding a pain of the nut has beenladiusted to its linal .position whereby loss of.

tlie'nut Ithrough vibrationi and the "like and the diliculties cont vented.

'One ofthe primary objects of tbe' lpres--` ent inventionv is to 'embodying [a pair.

ingent therewith pre- 'provide -a nutlock .of companion sections formed to provide'a chamber vtherebetween for a split clampng'ring, the lsections be-v ard one another to\p er ing adjustable toW f mit contracting 'of after `the nut has to A provide such.V a applied to' the bolt.

lthe 'ring about the bolt been'tinallyadjusted." `Another'salient objectA of. the invention is nut lock which can be ras a staple unit thereby permitting the convenient and expeditious placing ofthe nut in position.

A further object of the invention: is to provide. a nut lockk `coriipa'nion sections ableon the other,

orininga compartment therebetween for the reception oi' a.4

Wherebyupon adjusting of vone section rela' the' double cone will bel tive to *the other,

embodying a. pair lof oneot which is adjustv the sections having-.an

splity clamping ring -havfaces beveled to provide a' l double cone, each of the nutsections having beveled faces for engaging the double cone,

uniformly contracted so as-*to insure the thereofyonfthe bolt.

theinvention is the companion nut.; sections and .a' clamping ring- 'carried'thereby, with a removable key. for'v holding all fof tli sections vagainst movement i the 'adjustmentof relative to one 'another nut can vbethreaded,against the `work as aw being removable 'totallowf f one' of' the nut sections' 'whereby'I the entire to permit contraction of the ring;

A still furtliefobject of the invention is" 1 to4 provide a novel nut lock of the .above`char-,- roten-which will be durable; and efficient in-v be simple and easy to use, one .that will manufactureand'one Which'lcan be placed upon the marketand lused with conventional bolts', atA a small cost.i

Vith lthese and other objects n the novel construction,

invention consists 1 claimed, and

- type and includes 1', 192.7. semi no. 165,223,

arrangement and formation ofl parts, as

Willbe hereinafter.' -more `fully described,

Figurel `is a side elevation' of a bolt showing my irriprovedl nut being threaded- `thereon, f 2 is an end elevation showing the 6o 1 Figure im roved nutbeino threaded on the bolt,

igure 3 ,is a` fragmentary'l'ongitudinalmf-i' section taken on the line 3-3 of' Fignre.r2;.`""' i VFigure li isasimilar sectionshovving the nutafterthe same has beenadjusted against -6'5 the 'Work .and "the adjustable vnut section l' 'I tightened for contracting theringaboutthe vFigure 5 isa section takenv on the line 545 of Figure, `Figure G ,is a plan view of the i`n n`er' nut section, w Figure 7 "is "a`botto1n` -plan view ofnthe outer nut section,

Figure- 9 isfatransverse .section through theinner nut section,

the outer nut section, and

` Figure 11 isa Section throughthe clamp- ,ing ringtaken 'ontheline 11|11 of Figure'8.` Referring to the drawing-in detail, Where;

in similar` reference characters .design-ate Vcorresponding partsthroughout the several 85 vievvs,thefletter 'generally' indicates the' improved nut .lock 'and thebolt upon which the same can-'be threaded.` v 1 The b oltfzB can be ofv any conventional' theusuall shank 15 having a' ortion thereof provided with threads -The imprcvednut A comprises an inner nut section 2Q,- :inout-er nut section 30 and as lit clamping vring 40.- he inner ,nut section a threaded 21 for fitting upon the thread "16 andthe bore adjacent to its'inner end is ,enlarged and flared to provide a beveled or cone face 22 1`he 'inner endof the nut-is 100 preferably .reduced'and provided with lexternalthreads 23. for receiving the outer nut `section as willbe laterl described. It is tc A be noted tliatthe nut vsection Q0 inward ,of the.

illustrated in the accompanying It iawiri,f ,fs, in whlclrdrawings: y

Figure 10 is a transverse section through, v

205s pmided with 9 reducedpoition is of'a polygonal shape as at 24 so t-hat the same can'be conveniently turned bya Wrench. I y .A

A longitudinally extendingkeyway 25 isv formed in the nut section and this keyway extends parallel with and at one side of the, bore 21. Y

The outer nut section has its outer surface of a polygonal shape so that the same can he readily turned by a suitable-,Wrench and is iprovided with a threaded bore 31 to permit the same to be threaded upon the bolt. 'I his'bore gradually flares outward to4 provide a beveled'or cone face 32 which is left smooth for a purpose which will also-be later described- This lliar-ed face 32 terminates in a -large bore 33 which isvprovided with internal 'threads for/'matching the threads 23on the inner nut section 20 Whereby the outer nutsectionis threaded thereon. When the nut sections are threaded together a chamber is formed for thering 40 Which Will-'noa7 be described.

way 34 at one side of the bore 31 as clearlyr shown in the drawings.

In use of the improved nutlockthe` ring 40 is placed Within the nut .section20 afterwhich the nut section 3QV is threaded lli) .and armi -slit portion 41 of the ring.` l the-parts of the nut together and the nut` can now be threaded upon the bolt asa `si non the nut section 20 and When'the keyways 25and 34 come into alineinent a locking keyy 35 is inserted through the sameand ythe gle unitl and lirmlyl tightened againstv the work. After the' nut Vhas beentightened on ,y I I Y n '3; Iriia nut lock; theycombination. with a f theI bolt in Contact with y'the Work,'the- ,key is removed and tlie'section 30 is rotated re tive to the section 20,; vvhich brings thefaces 32 and 22 of thevnut sections into contact' 'with theifaces 43and 44. 'of the clamping ring.A This contracts the ring about the bolt ylocks the nut in place against retrograde movement- `When it is desired to remove the nut 'it is merely necessary to rotate the section 3() in a reverse-direction for releasing the ring "40 and the key 35 can-then be inserted in f the keyways 34 and 35v and through the split This looks all.;i

`tive movement during vthey laf I,

` ing the initial entii'e nut can-be rotated as seenthat Il have .provided an exceptionally simple nut lockvvhicli can be looked upon the bolt in an expeditious manner and readily removed therefromwhen desired invention, but what Iclaim as new is: v

L'Anut lock comprising an' 'inner'. nut section, an outer nutse'ction, one of the nut Changes in-details may be made Without departingfrom the spirit or the scope of this Y sections being threaded upon thev other, the f bores' of thenut sections being .enlarged at their vinner ends to provide a chamberxwhen the nut sections are fitted, together, a split ing internal threads for engaging the'v bolt, the i'iut sections land theclamping ring having coacting beveled faces for' bringing about .clamping ring disposed in the chamber havsections having keywaysat one side ofA the bore thereofliadapted to be brought in't registration Withjone'another at the split portion of the ring, a removable key fitted in said `alined keyways and .said split :for` holding .the'nut sections and tiring against I movementA to one another whereby@ the nuts can, befthreaded uponia bolta` single unit.

2. vIn a nut lock',fth ecombination Witlrda'` bolt, of a nut including" ,a pair of companiony sections adapted toi` berthreadedupon {tlie bolt, the nuty sectionsbeingl adjustable rela` i' tive to one-another' and having their bore tenlar ed topprov'ide" an internal 'chamber split o'ckingringfitted in the chainbeivpr'n ing the nut sections and the ring against rela# y initial application' ofzthe'nut upon the bolt. A

bolt, of a nut'including a pairo'f companion .vided with opposite cone faces, the nut sec-f tions having inclined faces for engaging f ring for contracting the saine in lociing enr-1.

gageinent about-'the bolt, and means for'hold-ffelo nut sections" adapted to'be threaded upon the I.

bolt adjustable relative one to the other, a"

Ch lrlping'ring confined between the nut sec-l vtions Vvadapted to be contracted on the bolt by.' adjustment of said nut.. ,section relative to one another, and means for holding the nut sections 4against relative movement durpplication of the nut `upon the bolt. l' i' 'l f In testimony whereof I' aix my signature'.-

IVO GEORGE BRENNEMAN. 

